Dc = 100km + Dt.
Vc*t = 100 + Vt*t.
120*t = 100 + 80*t.
40t = 100.
t = 2.5 h. To catchup.
Dc = V*t = 120 * 2.5 = 300 km To catchup.
A car moving at 120 km/h is 100 km behind a truck travelling at 80 km/h in the same direction. How many km does the car travel before it overtakes the truck?
1 answer